Surface 604 Shred

2023 MountainCross-country Electric bicycle

Last known price: $2,599

Prices shown first for United States
Fork travel: 110 mm
Wheels: 27.5″
Drivetrain: 1 × 9 38t / 12–34t
Gear range: 283%
Battery: 672 Wh
Brakes: Hydraulic disc

Sizes

Size guide

17.5"

The manufacturer did not publish rider heights for these sizes.

Components

12 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Electric system

3 parts

Battery

Watt Hours: 672 Wh, Details: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing 48 Volt, Lithium-ion, 14 Amp Hrs, (Optional 20 ah), Battery Weight: 14AH battery 3.45kg (7.5lbs) 20AH battery 4.65kg (10lbs), Weight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery) Not identified
Display

Surface 604 Branded, Fixed, Adjustable Angle, 3.5" Color, Backlit LCD, USB Type A Charging Port on Base Not identified
Motor
- Bafang

Suspension

1 part

Fork
- SR Suntour XCM32

Drivetrain

4 parts

Brakes

1 part

Brakes
- Tektro HD-E500
HD-E500

Wheels and tires

1 part

Rims

27.5 Not identified

Cockpit and contact points

7 parts

Grips

Velo, Flat Rubber, Locking, Black Not identified
Handlebar
- ProMax
Headset
- Samox
Pedals
- Wellgo
Saddle
- Selle Royal
Seatpost

Alloy, Forged Head, Dual Bolt Not identified
Stem

UNO, Aluminum Alloy, 40° Angle, 90 mm Length, 20 mm Tapered Base Spacer, One 10 mm Spacer, One 5 mm Spacer Not identified

Other components

1 part

Lights
- Buchel

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Fork material: Steel
Frame weight: 3.49 kg

7.7 lb

Suspension

Suspension configuration: Hardtail
Front travel: 110 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 9
Smallest sprocket: 12
Largest sprocket: 34
Lowest gear: 30.7 in
Highest gear: 87.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 672 Wh

Additional specifications

Battery: Watt Hours: 672 Wh, Details: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing 48 Volt, Lithium-ion, 14 Amp Hrs, (Optional 20 ah), Battery Weight: 14AH battery 3.45kg (7.5lbs) 20AH battery 4.65kg (10lbs), Weight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery)
Fork spring: Coil
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

110 mm

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,907 bicycles with this information
Coverage: 95.2% of the class

Lowest gear

30.7 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Highest gear

87.1 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Shifting

Mechanical

223 of 2,002 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 2,002 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 33.4 km/h

Total gear range 283%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 30.7–87.1 gear inches
Class reference (p10–p90): 17.7–101.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2023
Lowest gear: 1578 bicycles with this information, 78.8% of the class
Highest gear: 1578 bicycles with this information, 78.8% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2023 builds
Specification	This bicycle Surface 604 Shred	Surface 604 Shred XS
Frame
Frame weight	3.49 kg	Not informed
Frame material	Not informed	Aluminum
Bicycle weight	Not informed	27.03 kg
Drivetrain
Rear sprockets	9	Not informed
Smallest sprocket	12	Not informed
Largest sprocket	34	Not informed
Lowest gear	30.7 in	Not informed
Highest gear	87.1 in	Not informed
Other specifications
Battery	Capacity: 672 WhWatt Hours: 672 Wh, Details: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing 48 Volt, Lithium-ion, 14 Amp Hrs, (Optional 20 ah), Battery Weight: 14AH battery 3.45kg (7.5lbs) 20AH battery 4.65kg (10lbs), Weight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery)	Capacity: 672 WhWeight: 7.7 lbs (3.49 kg), Brand: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing, Voltage: 48 volts, Amp Hours: 14 ah, Watt Hours: 672 wh, Chemistry: Lithium-ion
Wheel size	27.5″	26″
Tire width	Not informed	2.8″

Changes since 2022
Specification	2022 Surface 604 Shred	This bicycle Surface 604 Shred
Frame
Frame material	Aluminum	Not informed
Bicycle weight	25.9 kg	Not informed
Frame weight	Not informed	3.49 kg
Drivetrain
Smallest sprocket	11	12
Largest sprocket	36	34
Lowest gear	29.0 in	30.7 in
Highest gear	95.0 in	87.1 in
Other specifications
Battery	Capacity: 672 WhWeight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery), Brand: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing, Voltage: 48 volts, Amp Hours: 14 ah (Optional 20ah), Watt Hours: 672 wh (Optional 960wh), Chemistry: Lithium-ion	Capacity: 672 WhWatt Hours: 672 Wh, Details: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing 48 Volt, Lithium-ion, 14 Amp Hrs, (Optional 20 ah), Battery Weight: 14AH battery 3.45kg (7.5lbs) 20AH battery 4.65kg (10lbs), Weight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery)
Tire width	2.8″	Not informed